package jdbc;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class JDBCDemo6 {
    public static void main(String[] args) {
        try(Connection connection = DBUtil.getConnecting()){
            Statement statement=connection.createStatement();
            String sql = "SELECT t.name,t.salary,c.name,c.floor " +
                    "FROM teacher t " +
                    "JOIN class c ON t.id=c.teacher_id "  +
                    "WHERE t.name='王克晶' ";
            ResultSet rs=statement.executeQuery(sql);
            while (rs.next()){
                String tName=rs.getString("t.name");
                int tSalary=rs.getInt("t.salary");
                String cName=rs.getString("c.name");
                int cFloor=rs.getInt("c.floor");
                //String 提供了将多个字符串链接为一个字符串，并在每个字符串中间添加【参数一】座位分隔符
                String line=String .join(",",tName,tSalary+"",cName,cFloor+"");
                System.out.println(line);
//                System.out.println(tName+","+tSalary+","+cName+","+cFloor);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
